Machine for punching rubber nipples.



J. L. MAHONEY.

MACHINE FOR PUNCHING RUBBER NIPPLES.

APPLICATION FILED DEC. 16. 1914.

L1%%,@45@ Patented June 22, 191.5.

3 SHEETS SHEET I l A TTOR/VEV 1.1. MAHONEY.

MACHINE FOR "PUNCHING RUBBER NIPPLES. APPLICATION FILED DEC-16. I914. L%%a I 4 Patented June 22, 1915.

3 SHEETSSHEET 2.

WITNESSES. lNI/E/VTOR ,4 TTOR/VEY J. L. MAHONEY.

MACHINE FOR PUNCHING RUBBER NIPPLES.

APPLICATION FILED DEC. 16, 1914- L1%4 U4E5m Patented June 22, 1915.

3 sHEETS-SHEET 3.

INVENTOH til mm L. lllllMfilltEY, (DPT NEW HAVEN, CONNECTICUT.

'nncmfron rnncnnve nnnnnn nrrrnns."

hpcoiflcation of Letters Patent.

application filed December 16; Tall-t. serial No. t'fhtdh;

To all whom, it may concern:

Be it lmown that T, .Jnnnnlran Ti. hTanoxnr, a citizen of the United States, residin at New Haven, county of New Haven, tate of Connecticut, have invented an improvement in Machines Rubber Nipples, of which a specification.

for Punching the following is This invention has for its object to pro work; is that the punchings are frequently.

not cut out all the way around, owing to the fact that. the operator cannot always hold E116 kpunch exactly. vertical to the punch In order to overcome these objections and to enable meto produce nipples wholly free from the defects and imperfections found in all nipplesfheretofore produced, have all be central and shall all be just alike and p of any required size.

With these and other objects in view T have devised the novel nipple punching machine Which T will now describe referring to the accompanyingdrawings forminga part of this spec' cation and using reference characters to indicate the several parts.

Figure 1 is an elevation of my novel machine; Fig.2 a view partly in elevation and partly in section, as seen from the opposite side;-:-l*7ig. 3 a plan view, a portion of the.

top plate of the carrier being broken away and the operating mechanism for the car rier being partly in section; Fig. t adetail view 'on an enlarged .scale, partly in elevation and partly in section, illustrating the construction and operation of the punching mechanlsm, and Edgy-.5 is a view on an enlarged-scale partlyin section, of the punch detached. 1

. L0 denotes the basewhich may rest upon a suitable bench oretable and which carries all the operative partsofthe machine,

11 -,denotes the driving shaft to 'whicli pow'erQis applied in lany ordinary or preferred manner, not shown, iand which' is.

.journaled. in. standards 12 extending .up-- ward from the base. This shaft carries a cam 13 andia crank diskila. The nipples to beoperated upon are placed upon thim-- bles. 15 arranged in a circle on an intermittentlyrotating carrienshown as spool shaped and indicated as a whole by 16. This carrier is mounted to rotate on a standard .l'Z extending upward from the base and comprises a hub 18 journaled on a spindle 19. upon .the standard, a ratchet 20 ,which rests upona shoulderon the standard and a disk 21 to which a ring-shaped carrying plate. 22 is rigidly secured. The carrying plate is provided-with holes and the thimbles, which project a-suitable distance above the plate, are secured in the holes Joya drive fit. The thimbles are adapted to carry different sized nipples and do not have to be changed in changing from one size of nipples to another as the nipples need not fit the thimbles closely. j

Intermittent rotary motion is imparted to the carrier by means of apawl 23- carried by a slide 24 and engaging ratchet20. slide reciprocates in a housing 25 supported by a standard 26 extending upward from v the base. The awl liesin a recess 27 in the slide and. is, retained in engagement with the teeth of the ratchet by means of a spring 28 socketed in the slide.

Etidenotes a pin rigidly set in the slide and extending through a slot 30 in the side of the housing. 31 denotes a connectingv rodapivoted on pin 29, itsother end beingpivoted on a crank pin 32 extending from disk 14:. Connecting rod 31- is provided with a-turnbuckle 33 in order to permit the rod-to be lengthened or shortened in adjust ing the throw of the slide and pawl. Crank pin 32 has rigidly secured thereto acrank armBi carryinga crank pin 35 upon which a a connecting rod 36 is pivoted, the function of which will presently he explained.

Patented June '22, idiot..-

The nipples on the thimbles are punched by means of a punch 37in coiiperation with a stretcher plate 38 and a ring-shaped punch block 39 carried by a worm wheel 40, as will be more fully explained. The punch is carried by a rod 41 which extends. down-' rod passes loosely,the'le'ver bearing on a cross pin 47 in the punch rod. .The rear end of this lever is bifurcated, the branches being provided with enlargements 48 which are mounted to oscillate on a rod 49 secured in ears 50 on standards 12. The rear ends of the enlargements comprise the short arms of the lever. A cross pin extends between them on which is m'ounteda roller 51 which is engaged by cam 13. The configuration of this camis clearly shown in Fig. 2.

, Figs. 1, 2 and 4 show the position of the parts at the instant a punching operation is performed. From this position the rotation of cam 13 will tilt the rear end of lever 46 and press the punch rod and punch downward against the power of spring. 44, until thehigh portion of the cam is reached, when roller 51 will pass the shoulder and drop down upon the low portion of the cam and cause the punching operation to I be performed by the power of the spring.

In order to insure that the punch will strike the punch block in a difierent place at each blow, the worm wheel by which it is carried is caused to rotate slowly. This is eifected by means of a worm 52 on a shaft 53 journaled in brackets 54narried by a slide 55 which is adapted for adjustment on a block 56. The block is divided upon one side and is clamped upon a head 57 extend inggipward from a standard '58 by means of. a It 59. The top of .the block is provided with-ways. 60 on which the slide may Y hook-shaped take-o be moved. the slide being locked in position after adjustment by means of bolts 61.

Shaft. 53 carries a ratchet62 which is en gaged by a pawl 63 carried by a lever 64 which is fulcrumed on shaft 53. The other end of this lever is pivoted to connecting rod 36 and receives motion from crank-arm 34. Lever 64 has ri 'dly secured thereto a 65 which removes a punched nipple from one of the thimbles andcauses it-to drop off into a suitable chute or receptacle, not shown. In Fig. 3 the take-off is shown in the retracted position.

-Movement toward the left removes a punched nipple. v,The timing of the move: ments is substantially as follows: The carrier is of course stationary at the instant the punching operation, takes place. After the punching operation the punch is retracted by means of cam 13,then-the carrier starts to move forward and at practically the same instant the take-oif moves toward the left from the'position in Fig. 3 and removes a punched nipple. As soon as the forward movement of the carrier ceases, the punch is released and punches another nipple which is removed from its thimble by the take-oil", as before.

In order ,to prevent the possibility of backward movement of shaft 53 and the ratchet I provide 'a'friction strap 66 which encircles the shaft and is closed about it as tightly as maybe required by means. of a bolt and nut 67. The other end of this strap, which is of metal, is provided with a hook 68 which engages a stud 69 projecting from standard 58. The book is made long enough not to interfere with thevcrtical adjustment of block 56 on head 57. It will be noted that by simply loosening bolt 59 the block, slide, worm wheel and worm shaft may be raised or lowered as much'as may be required. This adjustment is sometimes desirable in changing from relatively large to relatively small nipples and vice versa. It is obvious that in time the continuous blows of the punch will cut somethin ofa channel in the punch block. when this interferes to the slightest extent with the perfect worln'ng of the machine, slide 55 and the parts carried thereby may be adjusted upon block 56 by simply loosening bolts 61, which will cause the punch to strike the punch block in a circular path, of greater or less diameter, as may be.

The size of the holes punched in the nipples may be regulated by raising and lowering stretcher plate 38. It will of course be obvious that the more the nipple is stretched by the punch before it is actually out by the joint action of the punch and punch block, the smaller. will be the hole in the nipple.

It is also obvious that adjustment would be required to produce the same size hole in changing from large to small nipples or vice versa. The stretcher plate is shown as made -L-shaped, the horizontal arm being provided with a hole 70 through which the tip of the nipple is carried and stretched by the punch until a hole is cut in the nipple by the-joint action of the punch and the punch block. The other arm of the stretcher late is provided with a slot 71 through which a screw 72 engaging block 56 passes. By loosenin this screw the stretcher plate may be raise or lowered as required to produce a hole of the required size in any of the several sizes of nipples. The operation of punching a nipple will be clearly understood from Fig. 4 in which the nipple is indicated by 73.

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ll-li All raaaoaa Having thus described my invention l clam thimble when in alinen'lient with the stretcher plate.

2 A machine oil the character described comprising an intermittently rotating carrier having thimhles for ni ples, a punch bloch and a vertically movab e punch adapted to be passed through each nipple and to engage the such bloelr.

3. A mac e of the character described comprising an intermittently rotating car rier havin%thirnbles for nipples, a rotating punch bloc and a vertically movable punch adapted to he passed through each nipple and to engage the unch bloclr.

l. A machine .o the character described comprising an intermittentlly rotating car rier tor nipples, a punch Vb ockand a vertically movable punch adapted to be passed fihrofigh the carrier and to engage the punch 5. A machine at the character described comprising an intermittently rotating car rier-having holeatthimbles tor nipples set in said holes, a punch block and a punch adapted to be passed through the thimbles successively and to engage the punch bloclr.

t. A.machine ot the character described comprising an intermittently rotating carrier having thimbles tor nipples, a stretcher plate having a hole, a rotating punch block and a punch adapted to be passed through the thimbles successively and through t e stretcher plate. 7 i

'l'. A machine'ot the character described compring an intermittently rotatin carrier havin in said holes, a punch block and a adapted to be passed through the nipp e successively and through the stretcher plate.

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8. A machine of the character described comprising a carrier having thimbles for nipples and a ratchet, a pawl engaging the ratchet, a reciprocating slide by which the pawl is carried, a punch block, a stretcher plate and a punch adapted to be passed through the thimbles successively and through the stretcher plate. I I

9. A machine of the character described comprising an intermittently rotating carrier comprising a carrying plate, thlrnbles tor nipples carried by said plate, a stretcher plate having a hole with which the nipples are successively placed in alinement, a punch block and a punch.

10. A machine of the character described comprising an intermittently rotating carrier having thimbles tor nipples, a stretcher plate above the carrier, a punch block above holes, thimbles tor nipp es set. unch.

the stretcher plate and a punch ada ted to'be passed upward through the thim les successivel when in alineinent with the stretcher p ate.

ll. A machine of the characterdescribed comprising an intermittently rotating carrier having thimbles for nipples, a punch bloclr, a spring actuated punch adapted to pass through the nipples successively and engage the punch block and a cam and'intermediate connections for retracting the punch against the power of the spring and then releasing it.

12. A machine of the character described comprising an intermittently rotating carthe punch to operative position, a lever engaging the rod and a shouldered cam engaged by the lever which retracts the rod and punch against the power ot the spring and then releases them permitting the spring to actuate the punch.

13. A machine at the character described compris ng an intermittently rotating car rier tor nipples, a punch bloclr, a punch, a rod by which the punch is carried, a spring acting on the rod, a biturcated lever engaging the rod and having enlargements comprising short arms, a roller betweenthe enlargements and a shouldered cam engaged by the roller.

It. A machine ot' the character'describm comprising an intermittently rotating carrier having thimbles tor nipples, a punch bloclr, a worm wheel by which the punch bloch is'carried, a shalt carrying a worm engaging said wheel, and a ratchet, a lever carrying a pawl engaging the ratchet, a connecting and by which the lever is oscillated and a punch adapted to be passed through the nipples successively and to engage the punch bloeh.

15. A machine ot the character dmcribed comprising an intermittently rotating carrier having thimbles tor nipples, a punch block, a worm wheel by which the punch block is carried, a shalt carrying a worm engaging said wheel, and a ratchet, a lever carrying a pawl engaging the ratchet, a

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tently rotating carrier having thimbles for nipples and a punch adapted to be passed through the thimbles successively, of a rotating punch block and a take-0E for removing punched nipples from the thimbles.

18. The combination 7 with an intermittently rotating carrier having thimbles for nipples and a, punch adapted to be passed through the thimbles successively, of a rotating punch block, a stretcher plate through which the punch passes before engaging'the punch block and means for removing punched nipples from the thimbles.

a 19. The combination with an intermittently rotating carrier having thimbles for nipples and a spring actuated punch adapted to be passed through the thimbles successively, of a rotating punch block and means for retracting the punch against the power of the spring and then releasing it.

20. The combination with an intermittently rotating carrier having thimbles fornipples and a springactuated punch adapted to be passed through the thimbles successively, of a rotating punch block, means for retracting the punch against the power of the spring and then releasing it, and a stretcher plate through which the punch passes before engaging the punch block.

21.The combination with any intermittently rotating carrier having thimbles for nipples, a punch adapted to be passed through the thimbles successively, astretcher plate through which the punch passes and means for adjusting the stretcher plate to regulate the size of the holes punched.

22. The combination with a spool shaped carrier having a carrying plate and thim bles for nipples, of means 'for imparting intermittent rotary motion to the carrier,-a punch adapted to be passed through the glliiniples successively, and a rotating punch 23. The combination with a spool shaped carrier having a carrying plate and thimbles for nipples, of'means for imparting intermittent rotary motion to the carrier, a stretcher plate, a punch adapted to be passed through the thimbles successively and through the stretcher plate, and a punch block.

- 24. The combination with a spool shaped carrier having a carryin plate and thimbles for nipples, of means or imparting intermittent rotary motion to the carrier, a punch adapted to be passed through the thimbles successively, a stretcher plate, a punch block, and means for rotating the punch block.

25. The combination with an intermits tently rotating carrier having thimbles for nipples, and a stretcher plate, of a punch adapted to be passed through the thimbles successively and through the stretcher plate, a ring shaped punch block and means for imparting rotation thereto.-

icense '26. The combination with a spool shaped carrier having a carryin plate and thim les for nipples, of means or imparting intermittent rotary motion tothe carrier, a punch adapted to be passed through the thimbles successively, a stretcher plate, a punch block, means for rotating the punch' block and means for adjustin the punch block verticall and horizonta 1y.

2 The combination with an intermittently rotating carrier having thimbles ,for nipples, and.a stretcher plate, of a punch adapted to be passed through the thimbles successively and through the stretcher plate, a ring shaped punch block and a worm wheel by which the punch block is carried.

28. The combination with an intermittentl rotating carrier having thimbles for ni p es, and a stretcher plate, of a punch a apted to be assed through the thimbles successively and through the stretcher plate, a rotating punch block and means for removi punched nipples from the thimbles.

29. e combination with an intermittentl rotating carrier having thimbles for ni p es, and a stretcher plate, of a punch a apted to be assed through the thimbles successivel an through the stretcher plate, a punch b ock and a take-off.

30. The combination with an intermittently rotating carrier having'thimbles for nidpples and a stretcher plate, of a punch a apted to be assed through the thimbles successively an through the stretcher plate, a ring shaped punch lock, a worm wheel by which it is carried, a worm engaging said wheel, a worm shaft, means for im arting intermittent rotation to said shaftan means for retaining said shaft against backward movement.

312 The combination with an intermittently rotating carrier having thimbles for nipples, and a stretcher plate, of a punch adapted to be assed through the thimbles successively and through the stretcher plate, a punch block, a worm wheel by which it is carried, ashaftcarrying a worm engaging said wheel and a ratchet, a pawl enga 'ng the ratchet and a friction strap enclrc ing the shaft to prevent backward movement.

32. The combination with an intermittently rotating carrier having thimbles for nipples, and a stretcher plate, of a unch adapted to be (passed through the thimbles successively an through the stretcher plate, a punch block, a worm wheel by which it is carried, a shaft carrying a worm engaging said wheel and a ratchet, a pawl engaging the ratchet, a. lever by which the awl is carried, a take-off for punched nipp es carried by the lever and means for oscillating the lever.

33. The combination with an intermittentl rotating'carrier having thimbles for nipp es, and a stretcher plate, of a punch adapted to be passed through the thimbles successively an through the stretcher plate, a punch block, a worm wheel by. which. it is carried, a shaft carrying a Worm engaging said wheel and a ratchet, a pawl engaging the ratchet and an adjustable block b which the worm wheel and shaft are carrie 34. The combination with an intermittentl rotating carrier h'avin thimbles Tor nippies and a punch adapte to be passed through the thlmbles successively, of a rotating punch block and means for adjustin the punch block relatively to the punc whereby the punch is caused to strike the block in a new circular path.

35. The combination with an intermittently rotating carrier havin thimbles for nipples and a punch aolapte to be assed through the thimbles successively, o a retatin punch block, operating mechanim there or and an adjustable block by which said parts are carried. a

36. The combination with an intermittently rotating carrier havin thimbles for nipp es and a punch adapte through the thimbles successively, of a punch block, aworm wheel by which said block is carried, operating means for the worm wheel, a vertically adjustable block and a slide horizontally adjustable on said block by which the worm wheel and operating means are carried.

37. The combination with an intermittently rotating carrier having thimbles for nipples, a stretcher plate and a punch adapted to be passed throu h the thimbles successivel and through the stretcher plate, of a rotating unch block and means for adjusting sai block vertically and horizontally.

In testimon whereof I affix my signature in presence 0 two witnesses.

e JEREMIAH L. MAHONEY.

Witnesses:

GEORGE R. CooLnr, MARILLA Fmno.

to be passed z.- 

